Home / 917.66-1,377-848

Finding the Fourth Proportional to 917.66, 1,377 and 848

Calculator

Solution

The fourth proportional to 917.66, 1,377 and 848 is: 1,272.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    917.66 : 1,377 = 848 : x
  2. Step 2: Convert to fraction form
    917.66/1,377 = 848/x
  3. Step 3: Cross multiply
    917.66x = 1,377 × 848
  4. Step 4: Simplify right side
    917.66x = 1,167,696
  5. Step 5: Solve for x
    x = 1,167,696/917.66
  6. Step 6: Final answer
    x = 1,272.47

Related Problems

Find fourth proportional to 458.83, 688.50 and 424
Half scale
Find fourth proportional to 1,835.32, 2,754 and 1,696
Double scale
Find fourth proportional to 918.66, 1,378.50 and 849
Similar ratio
Find fourth proportional to 1,376.49, 2,065.50 and 1,272
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.