Home / 6,386.10-9,574.11-2,688.90

Finding the Fourth Proportional to 6,386.10, 9,574.11 and 2,688.90

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Solution

The fourth proportional to 6,386.10, 9,574.11 and 2,688.90 is: 4,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.10 : 9,574.11 = 2,688.90 : x
  2. Step 2: Convert to fraction form
    6,386.10/9,574.11 = 2,688.90/x
  3. Step 3: Cross multiply
    6,386.10x = 9,574.11 × 2,688.90
  4. Step 4: Simplify right side
    6,386.10x = 25,743,824.38
  5. Step 5: Solve for x
    x = 25,743,824.38/6,386.10
  6. Step 6: Final answer
    x = 4,031.23

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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.