Home / 5,117.04-7,678.52-2,155.26

Finding the Fourth Proportional to 5,117.04, 7,678.52 and 2,155.26

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Solution

The fourth proportional to 5,117.04, 7,678.52 and 2,155.26 is: 3,234.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.04 : 7,678.52 = 2,155.26 : x
  2. Step 2: Convert to fraction form
    5,117.04/7,678.52 = 2,155.26/x
  3. Step 3: Cross multiply
    5,117.04x = 7,678.52 × 2,155.26
  4. Step 4: Simplify right side
    5,117.04x = 16,549,207.02
  5. Step 5: Solve for x
    x = 16,549,207.02/5,117.04
  6. Step 6: Final answer
    x = 3,234.14

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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.