Home / 6,875.09-10,306.40-2,489.45

Finding the Fourth Proportional to 6,875.09, 10,306.40 and 2,489.45

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Solution

The fourth proportional to 6,875.09, 10,306.40 and 2,489.45 is: 3,731.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.09 : 10,306.40 = 2,489.45 : x
  2. Step 2: Convert to fraction form
    6,875.09/10,306.40 = 2,489.45/x
  3. Step 3: Cross multiply
    6,875.09x = 10,306.40 × 2,489.45
  4. Step 4: Simplify right side
    6,875.09x = 25,657,203.50
  5. Step 5: Solve for x
    x = 25,657,203.50/6,875.09
  6. Step 6: Final answer
    x = 3,731.91

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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.