Home / 1,501.38-2,070.03-1,147.74

Finding the Fourth Proportional to 1,501.38, 2,070.03 and 1,147.74

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Solution

The fourth proportional to 1,501.38, 2,070.03 and 1,147.74 is: 1,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.38 : 2,070.03 = 1,147.74 : x
  2. Step 2: Convert to fraction form
    1,501.38/2,070.03 = 1,147.74/x
  3. Step 3: Cross multiply
    1,501.38x = 2,070.03 × 1,147.74
  4. Step 4: Simplify right side
    1,501.38x = 2,375,856.23
  5. Step 5: Solve for x
    x = 2,375,856.23/1,501.38
  6. Step 6: Final answer
    x = 1,582.45

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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.