Home / 5,118.16-7,677.96-1,655.68

Finding the Fourth Proportional to 5,118.16, 7,677.96 and 1,655.68

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Solution

The fourth proportional to 5,118.16, 7,677.96 and 1,655.68 is: 2,483.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.16 : 7,677.96 = 1,655.68 : x
  2. Step 2: Convert to fraction form
    5,118.16/7,677.96 = 1,655.68/x
  3. Step 3: Cross multiply
    5,118.16x = 7,677.96 × 1,655.68
  4. Step 4: Simplify right side
    5,118.16x = 12,712,244.81
  5. Step 5: Solve for x
    x = 12,712,244.81/5,118.16
  6. Step 6: Final answer
    x = 2,483.75

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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.