Home / 4,688.08-7,011.40-4,171.72

Finding the Fourth Proportional to 4,688.08, 7,011.40 and 4,171.72

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Solution

The fourth proportional to 4,688.08, 7,011.40 and 4,171.72 is: 6,239.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.08 : 7,011.40 = 4,171.72 : x
  2. Step 2: Convert to fraction form
    4,688.08/7,011.40 = 4,171.72/x
  3. Step 3: Cross multiply
    4,688.08x = 7,011.40 × 4,171.72
  4. Step 4: Simplify right side
    4,688.08x = 29,249,597.61
  5. Step 5: Solve for x
    x = 29,249,597.61/4,688.08
  6. Step 6: Final answer
    x = 6,239.14

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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.