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Finding the Fourth Proportional to 2,520, 3,477.51 and 1,400.91

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Solution

The fourth proportional to 2,520, 3,477.51 and 1,400.91 is: 1,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520 : 3,477.51 = 1,400.91 : x
  2. Step 2: Convert to fraction form
    2,520/3,477.51 = 1,400.91/x
  3. Step 3: Cross multiply
    2,520x = 3,477.51 × 1,400.91
  4. Step 4: Simplify right side
    2,520x = 4,871,678.53
  5. Step 5: Solve for x
    x = 4,871,678.53/2,520
  6. Step 6: Final answer
    x = 1,933.21

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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.