Home / 6,925.20-10,386.60-2,540.40

Finding the Fourth Proportional to 6,925.20, 10,386.60 and 2,540.40

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Solution

The fourth proportional to 6,925.20, 10,386.60 and 2,540.40 is: 3,810.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,925.20 : 10,386.60 = 2,540.40 : x
  2. Step 2: Convert to fraction form
    6,925.20/10,386.60 = 2,540.40/x
  3. Step 3: Cross multiply
    6,925.20x = 10,386.60 × 2,540.40
  4. Step 4: Simplify right side
    6,925.20x = 26,386,118.64
  5. Step 5: Solve for x
    x = 26,386,118.64/6,925.20
  6. Step 6: Final answer
    x = 3,810.16

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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.