Home / 6,456.43-9,681.76-1,838.35

Finding the Fourth Proportional to 6,456.43, 9,681.76 and 1,838.35

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Solution

The fourth proportional to 6,456.43, 9,681.76 and 1,838.35 is: 2,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.43 : 9,681.76 = 1,838.35 : x
  2. Step 2: Convert to fraction form
    6,456.43/9,681.76 = 1,838.35/x
  3. Step 3: Cross multiply
    6,456.43x = 9,681.76 × 1,838.35
  4. Step 4: Simplify right side
    6,456.43x = 17,798,405.90
  5. Step 5: Solve for x
    x = 17,798,405.90/6,456.43
  6. Step 6: Final answer
    x = 2,756.70

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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.