Home / 7,287.40-10,925.10-3,130.60

Finding the Fourth Proportional to 7,287.40, 10,925.10 and 3,130.60

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Solution

The fourth proportional to 7,287.40, 10,925.10 and 3,130.60 is: 4,693.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.40 : 10,925.10 = 3,130.60 : x
  2. Step 2: Convert to fraction form
    7,287.40/10,925.10 = 3,130.60/x
  3. Step 3: Cross multiply
    7,287.40x = 10,925.10 × 3,130.60
  4. Step 4: Simplify right side
    7,287.40x = 34,202,118.06
  5. Step 5: Solve for x
    x = 34,202,118.06/7,287.40
  6. Step 6: Final answer
    x = 4,693.32

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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.