Home / 5,154.02-7,731.63-1,821.57

Finding the Fourth Proportional to 5,154.02, 7,731.63 and 1,821.57

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Solution

The fourth proportional to 5,154.02, 7,731.63 and 1,821.57 is: 2,732.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.02 : 7,731.63 = 1,821.57 : x
  2. Step 2: Convert to fraction form
    5,154.02/7,731.63 = 1,821.57/x
  3. Step 3: Cross multiply
    5,154.02x = 7,731.63 × 1,821.57
  4. Step 4: Simplify right side
    5,154.02x = 14,083,705.26
  5. Step 5: Solve for x
    x = 14,083,705.26/5,154.02
  6. Step 6: Final answer
    x = 2,732.57

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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.