Home / 7,143.02-9,855.77-4,310.85

Finding the Fourth Proportional to 7,143.02, 9,855.77 and 4,310.85

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Solution

The fourth proportional to 7,143.02, 9,855.77 and 4,310.85 is: 5,948.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.02 : 9,855.77 = 4,310.85 : x
  2. Step 2: Convert to fraction form
    7,143.02/9,855.77 = 4,310.85/x
  3. Step 3: Cross multiply
    7,143.02x = 9,855.77 × 4,310.85
  4. Step 4: Simplify right side
    7,143.02x = 42,486,746.10
  5. Step 5: Solve for x
    x = 42,486,746.10/7,143.02
  6. Step 6: Final answer
    x = 5,948.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.