Home / 7,870.20-10,851.66-4,725.24

Finding the Fourth Proportional to 7,870.20, 10,851.66 and 4,725.24

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Solution

The fourth proportional to 7,870.20, 10,851.66 and 4,725.24 is: 6,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.20 : 10,851.66 = 4,725.24 : x
  2. Step 2: Convert to fraction form
    7,870.20/10,851.66 = 4,725.24/x
  3. Step 3: Cross multiply
    7,870.20x = 10,851.66 × 4,725.24
  4. Step 4: Simplify right side
    7,870.20x = 51,276,697.90
  5. Step 5: Solve for x
    x = 51,276,697.90/7,870.20
  6. Step 6: Final answer
    x = 6,515.30

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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.