Home / 3,590.79-5,386.17-1,125.39

Finding the Fourth Proportional to 3,590.79, 5,386.17 and 1,125.39

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Solution

The fourth proportional to 3,590.79, 5,386.17 and 1,125.39 is: 1,688.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.79 : 5,386.17 = 1,125.39 : x
  2. Step 2: Convert to fraction form
    3,590.79/5,386.17 = 1,125.39/x
  3. Step 3: Cross multiply
    3,590.79x = 5,386.17 × 1,125.39
  4. Step 4: Simplify right side
    3,590.79x = 6,061,541.86
  5. Step 5: Solve for x
    x = 6,061,541.86/3,590.79
  6. Step 6: Final answer
    x = 1,688.08

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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.