Home / 7,638.40-10,541.10-4,654.36

Finding the Fourth Proportional to 7,638.40, 10,541.10 and 4,654.36

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Solution

The fourth proportional to 7,638.40, 10,541.10 and 4,654.36 is: 6,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.40 : 10,541.10 = 4,654.36 : x
  2. Step 2: Convert to fraction form
    7,638.40/10,541.10 = 4,654.36/x
  3. Step 3: Cross multiply
    7,638.40x = 10,541.10 × 4,654.36
  4. Step 4: Simplify right side
    7,638.40x = 49,062,074.20
  5. Step 5: Solve for x
    x = 49,062,074.20/7,638.40
  6. Step 6: Final answer
    x = 6,423.08

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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.