Home / 2,430.38-3,353.40-1,545.86

Finding the Fourth Proportional to 2,430.38, 3,353.40 and 1,545.86

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Solution

The fourth proportional to 2,430.38, 3,353.40 and 1,545.86 is: 2,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.38 : 3,353.40 = 1,545.86 : x
  2. Step 2: Convert to fraction form
    2,430.38/3,353.40 = 1,545.86/x
  3. Step 3: Cross multiply
    2,430.38x = 3,353.40 × 1,545.86
  4. Step 4: Simplify right side
    2,430.38x = 5,183,886.92
  5. Step 5: Solve for x
    x = 5,183,886.92/2,430.38
  6. Step 6: Final answer
    x = 2,132.95

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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.