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Finding the Fourth Proportional to 2,937.52, 4,406.28 and 990.01

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Solution

The fourth proportional to 2,937.52, 4,406.28 and 990.01 is: 1,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,937.52 : 4,406.28 = 990.01 : x
  2. Step 2: Convert to fraction form
    2,937.52/4,406.28 = 990.01/x
  3. Step 3: Cross multiply
    2,937.52x = 4,406.28 × 990.01
  4. Step 4: Simplify right side
    2,937.52x = 4,362,261.26
  5. Step 5: Solve for x
    x = 4,362,261.26/2,937.52
  6. Step 6: Final answer
    x = 1,485.02

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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.