Home / 7,056.20-9,731.70-5,291.72

Finding the Fourth Proportional to 7,056.20, 9,731.70 and 5,291.72

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Solution

The fourth proportional to 7,056.20, 9,731.70 and 5,291.72 is: 7,298.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,056.20 : 9,731.70 = 5,291.72 : x
  2. Step 2: Convert to fraction form
    7,056.20/9,731.70 = 5,291.72/x
  3. Step 3: Cross multiply
    7,056.20x = 9,731.70 × 5,291.72
  4. Step 4: Simplify right side
    7,056.20x = 51,497,431.52
  5. Step 5: Solve for x
    x = 51,497,431.52/7,056.20
  6. Step 6: Final answer
    x = 7,298.18

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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.