Home / 1,625.12-2,240.24-1,151.52

Finding the Fourth Proportional to 1,625.12, 2,240.24 and 1,151.52

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Solution

The fourth proportional to 1,625.12, 2,240.24 and 1,151.52 is: 1,587.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.12 : 2,240.24 = 1,151.52 : x
  2. Step 2: Convert to fraction form
    1,625.12/2,240.24 = 1,151.52/x
  3. Step 3: Cross multiply
    1,625.12x = 2,240.24 × 1,151.52
  4. Step 4: Simplify right side
    1,625.12x = 2,579,681.16
  5. Step 5: Solve for x
    x = 2,579,681.16/1,625.12
  6. Step 6: Final answer
    x = 1,587.38

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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.