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Finding the Fourth Proportional to 3,256.32, 4,883.54 and 916.16

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Solution

The fourth proportional to 3,256.32, 4,883.54 and 916.16 is: 1,373.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256.32 : 4,883.54 = 916.16 : x
  2. Step 2: Convert to fraction form
    3,256.32/4,883.54 = 916.16/x
  3. Step 3: Cross multiply
    3,256.32x = 4,883.54 × 916.16
  4. Step 4: Simplify right side
    3,256.32x = 4,474,118.51
  5. Step 5: Solve for x
    x = 4,474,118.51/3,256.32
  6. Step 6: Final answer
    x = 1,373.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.