Home / 3,153.02-4,731.28-1,421.50

Finding the Fourth Proportional to 3,153.02, 4,731.28 and 1,421.50

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Solution

The fourth proportional to 3,153.02, 4,731.28 and 1,421.50 is: 2,133.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.02 : 4,731.28 = 1,421.50 : x
  2. Step 2: Convert to fraction form
    3,153.02/4,731.28 = 1,421.50/x
  3. Step 3: Cross multiply
    3,153.02x = 4,731.28 × 1,421.50
  4. Step 4: Simplify right side
    3,153.02x = 6,725,514.52
  5. Step 5: Solve for x
    x = 6,725,514.52/3,153.02
  6. Step 6: Final answer
    x = 2,133.04

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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.