Home / 2,430.28-3,638.12-1,562.76

Finding the Fourth Proportional to 2,430.28, 3,638.12 and 1,562.76

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Solution

The fourth proportional to 2,430.28, 3,638.12 and 1,562.76 is: 2,339.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.28 : 3,638.12 = 1,562.76 : x
  2. Step 2: Convert to fraction form
    2,430.28/3,638.12 = 1,562.76/x
  3. Step 3: Cross multiply
    2,430.28x = 3,638.12 × 1,562.76
  4. Step 4: Simplify right side
    2,430.28x = 5,685,508.41
  5. Step 5: Solve for x
    x = 5,685,508.41/2,430.28
  6. Step 6: Final answer
    x = 2,339.45

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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.