Home / 3,291.12-4,937.64-1,557.36

Finding the Fourth Proportional to 3,291.12, 4,937.64 and 1,557.36

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Solution

The fourth proportional to 3,291.12, 4,937.64 and 1,557.36 is: 2,336.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.12 : 4,937.64 = 1,557.36 : x
  2. Step 2: Convert to fraction form
    3,291.12/4,937.64 = 1,557.36/x
  3. Step 3: Cross multiply
    3,291.12x = 4,937.64 × 1,557.36
  4. Step 4: Simplify right side
    3,291.12x = 7,689,683.03
  5. Step 5: Solve for x
    x = 7,689,683.03/3,291.12
  6. Step 6: Final answer
    x = 2,336.49

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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.