Home / 3,459.63-4,774.28-1,887.72

Finding the Fourth Proportional to 3,459.63, 4,774.28 and 1,887.72

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Solution

The fourth proportional to 3,459.63, 4,774.28 and 1,887.72 is: 2,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.63 : 4,774.28 = 1,887.72 : x
  2. Step 2: Convert to fraction form
    3,459.63/4,774.28 = 1,887.72/x
  3. Step 3: Cross multiply
    3,459.63x = 4,774.28 × 1,887.72
  4. Step 4: Simplify right side
    3,459.63x = 9,012,494.40
  5. Step 5: Solve for x
    x = 9,012,494.40/3,459.63
  6. Step 6: Final answer
    x = 2,605.05

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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.