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Finding the Fourth Proportional to 3,526.98, 4,867.16 and 2,129.74

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Solution

The fourth proportional to 3,526.98, 4,867.16 and 2,129.74 is: 2,939.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,526.98 : 4,867.16 = 2,129.74 : x
  2. Step 2: Convert to fraction form
    3,526.98/4,867.16 = 2,129.74/x
  3. Step 3: Cross multiply
    3,526.98x = 4,867.16 × 2,129.74
  4. Step 4: Simplify right side
    3,526.98x = 10,365,785.34
  5. Step 5: Solve for x
    x = 10,365,785.34/3,526.98
  6. Step 6: Final answer
    x = 2,939.00

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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.