Home / 7,231.18-9,987.24-4,869.22

Finding the Fourth Proportional to 7,231.18, 9,987.24 and 4,869.22

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Solution

The fourth proportional to 7,231.18, 9,987.24 and 4,869.22 is: 6,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231.18 : 9,987.24 = 4,869.22 : x
  2. Step 2: Convert to fraction form
    7,231.18/9,987.24 = 4,869.22/x
  3. Step 3: Cross multiply
    7,231.18x = 9,987.24 × 4,869.22
  4. Step 4: Simplify right side
    7,231.18x = 48,630,068.75
  5. Step 5: Solve for x
    x = 48,630,068.75/7,231.18
  6. Step 6: Final answer
    x = 6,725.05

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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.