Home / 3,459.79-4,774.33-1,887.85

Finding the Fourth Proportional to 3,459.79, 4,774.33 and 1,887.85

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Solution

The fourth proportional to 3,459.79, 4,774.33 and 1,887.85 is: 2,605.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.79 : 4,774.33 = 1,887.85 : x
  2. Step 2: Convert to fraction form
    3,459.79/4,774.33 = 1,887.85/x
  3. Step 3: Cross multiply
    3,459.79x = 4,774.33 × 1,887.85
  4. Step 4: Simplify right side
    3,459.79x = 9,013,218.89
  5. Step 5: Solve for x
    x = 9,013,218.89/3,459.79
  6. Step 6: Final answer
    x = 2,605.13

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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.