Home / 3,459.47-4,774.05-1,887.55

Finding the Fourth Proportional to 3,459.47, 4,774.05 and 1,887.55

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Solution

The fourth proportional to 3,459.47, 4,774.05 and 1,887.55 is: 2,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.47 : 4,774.05 = 1,887.55 : x
  2. Step 2: Convert to fraction form
    3,459.47/4,774.05 = 1,887.55/x
  3. Step 3: Cross multiply
    3,459.47x = 4,774.05 × 1,887.55
  4. Step 4: Simplify right side
    3,459.47x = 9,011,246.14
  5. Step 5: Solve for x
    x = 9,011,246.14/3,459.47
  6. Step 6: Final answer
    x = 2,604.81

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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.