Home / 3,557.08-4,908.91-1,985.48

Finding the Fourth Proportional to 3,557.08, 4,908.91 and 1,985.48

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Solution

The fourth proportional to 3,557.08, 4,908.91 and 1,985.48 is: 2,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.08 : 4,908.91 = 1,985.48 : x
  2. Step 2: Convert to fraction form
    3,557.08/4,908.91 = 1,985.48/x
  3. Step 3: Cross multiply
    3,557.08x = 4,908.91 × 1,985.48
  4. Step 4: Simplify right side
    3,557.08x = 9,746,537.66
  5. Step 5: Solve for x
    x = 9,746,537.66/3,557.08
  6. Step 6: Final answer
    x = 2,740.04

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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.