Home / 3,459.80-4,774.52-1,887.90

Finding the Fourth Proportional to 3,459.80, 4,774.52 and 1,887.90

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Solution

The fourth proportional to 3,459.80, 4,774.52 and 1,887.90 is: 2,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.80 : 4,774.52 = 1,887.90 : x
  2. Step 2: Convert to fraction form
    3,459.80/4,774.52 = 1,887.90/x
  3. Step 3: Cross multiply
    3,459.80x = 4,774.52 × 1,887.90
  4. Step 4: Simplify right side
    3,459.80x = 9,013,803.12
  5. Step 5: Solve for x
    x = 9,013,803.12/3,459.80
  6. Step 6: Final answer
    x = 2,605.29

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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.