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Finding the Fourth Proportional to 3,762.02, 5,642.39 and 1,570.16

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Solution

The fourth proportional to 3,762.02, 5,642.39 and 1,570.16 is: 2,354.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.02 : 5,642.39 = 1,570.16 : x
  2. Step 2: Convert to fraction form
    3,762.02/5,642.39 = 1,570.16/x
  3. Step 3: Cross multiply
    3,762.02x = 5,642.39 × 1,570.16
  4. Step 4: Simplify right side
    3,762.02x = 8,859,473.11
  5. Step 5: Solve for x
    x = 8,859,473.11/3,762.02
  6. Step 6: Final answer
    x = 2,354.98

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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.