Home / 1,420.16-1,959.06-896

Finding the Fourth Proportional to 1,420.16, 1,959.06 and 896

Calculator

Solution

The fourth proportional to 1,420.16, 1,959.06 and 896 is: 1,236

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420.16 : 1,959.06 = 896 : x
  2. Step 2: Convert to fraction form
    1,420.16/1,959.06 = 896/x
  3. Step 3: Cross multiply
    1,420.16x = 1,959.06 × 896
  4. Step 4: Simplify right side
    1,420.16x = 1,755,317.76
  5. Step 5: Solve for x
    x = 1,755,317.76/1,420.16
  6. Step 6: Final answer
    x = 1,236

Related Problems

Find fourth proportional to 710.08, 979.53 and 448
Half scale
Find fourth proportional to 2,840.32, 3,918.12 and 1,792
Double scale
Find fourth proportional to 1,421.16, 1,960.44 and 897
Similar ratio
Find fourth proportional to 2,130.24, 2,938.59 and 1,344
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.