Home / 5,127.02-7,690.53-1,429.35

Finding the Fourth Proportional to 5,127.02, 7,690.53 and 1,429.35

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Solution

The fourth proportional to 5,127.02, 7,690.53 and 1,429.35 is: 2,144.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.02 : 7,690.53 = 1,429.35 : x
  2. Step 2: Convert to fraction form
    5,127.02/7,690.53 = 1,429.35/x
  3. Step 3: Cross multiply
    5,127.02x = 7,690.53 × 1,429.35
  4. Step 4: Simplify right side
    5,127.02x = 10,992,459.06
  5. Step 5: Solve for x
    x = 10,992,459.06/5,127.02
  6. Step 6: Final answer
    x = 2,144.03

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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.