Home / 7,061.60-10,588.40-2,679.20

Finding the Fourth Proportional to 7,061.60, 10,588.40 and 2,679.20

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Solution

The fourth proportional to 7,061.60, 10,588.40 and 2,679.20 is: 4,017.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,061.60 : 10,588.40 = 2,679.20 : x
  2. Step 2: Convert to fraction form
    7,061.60/10,588.40 = 2,679.20/x
  3. Step 3: Cross multiply
    7,061.60x = 10,588.40 × 2,679.20
  4. Step 4: Simplify right side
    7,061.60x = 28,368,441.28
  5. Step 5: Solve for x
    x = 28,368,441.28/7,061.60
  6. Step 6: Final answer
    x = 4,017.28

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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.