Home / 3,436.40-4,742.22-1,864.48

Finding the Fourth Proportional to 3,436.40, 4,742.22 and 1,864.48

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Solution

The fourth proportional to 3,436.40, 4,742.22 and 1,864.48 is: 2,572.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.40 : 4,742.22 = 1,864.48 : x
  2. Step 2: Convert to fraction form
    3,436.40/4,742.22 = 1,864.48/x
  3. Step 3: Cross multiply
    3,436.40x = 4,742.22 × 1,864.48
  4. Step 4: Simplify right side
    3,436.40x = 8,841,774.35
  5. Step 5: Solve for x
    x = 8,841,774.35/3,436.40
  6. Step 6: Final answer
    x = 2,572.98

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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.