Home / 1,210.02-1,810.37-1,071.51

Finding the Fourth Proportional to 1,210.02, 1,810.37 and 1,071.51

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Solution

The fourth proportional to 1,210.02, 1,810.37 and 1,071.51 is: 1,603.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.02 : 1,810.37 = 1,071.51 : x
  2. Step 2: Convert to fraction form
    1,210.02/1,810.37 = 1,071.51/x
  3. Step 3: Cross multiply
    1,210.02x = 1,810.37 × 1,071.51
  4. Step 4: Simplify right side
    1,210.02x = 1,939,824.20
  5. Step 5: Solve for x
    x = 1,939,824.20/1,210.02
  6. Step 6: Final answer
    x = 1,603.13

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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.