Home / 2,864.61-4,297.02-916.56

Finding the Fourth Proportional to 2,864.61, 4,297.02 and 916.56

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Solution

The fourth proportional to 2,864.61, 4,297.02 and 916.56 is: 1,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.61 : 4,297.02 = 916.56 : x
  2. Step 2: Convert to fraction form
    2,864.61/4,297.02 = 916.56/x
  3. Step 3: Cross multiply
    2,864.61x = 4,297.02 × 916.56
  4. Step 4: Simplify right side
    2,864.61x = 3,938,487.39
  5. Step 5: Solve for x
    x = 3,938,487.39/2,864.61
  6. Step 6: Final answer
    x = 1,374.88

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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.