Home / 1,500.31-2,070.43-837.15

Finding the Fourth Proportional to 1,500.31, 2,070.43 and 837.15

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Solution

The fourth proportional to 1,500.31, 2,070.43 and 837.15 is: 1,155.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500.31 : 2,070.43 = 837.15 : x
  2. Step 2: Convert to fraction form
    1,500.31/2,070.43 = 837.15/x
  3. Step 3: Cross multiply
    1,500.31x = 2,070.43 × 837.15
  4. Step 4: Simplify right side
    1,500.31x = 1,733,250.12
  5. Step 5: Solve for x
    x = 1,733,250.12/1,500.31
  6. Step 6: Final answer
    x = 1,155.26

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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.