Home / 7,615.28-10,508.31-4,257.80

Finding the Fourth Proportional to 7,615.28, 10,508.31 and 4,257.80

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Solution

The fourth proportional to 7,615.28, 10,508.31 and 4,257.80 is: 5,875.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.28 : 10,508.31 = 4,257.80 : x
  2. Step 2: Convert to fraction form
    7,615.28/10,508.31 = 4,257.80/x
  3. Step 3: Cross multiply
    7,615.28x = 10,508.31 × 4,257.80
  4. Step 4: Simplify right side
    7,615.28x = 44,742,282.32
  5. Step 5: Solve for x
    x = 44,742,282.32/7,615.28
  6. Step 6: Final answer
    x = 5,875.33

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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.