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Finding the Fourth Proportional to 1,464.52, 2,019.90 and 874.93

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Solution

The fourth proportional to 1,464.52, 2,019.90 and 874.93 is: 1,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.52 : 2,019.90 = 874.93 : x
  2. Step 2: Convert to fraction form
    1,464.52/2,019.90 = 874.93/x
  3. Step 3: Cross multiply
    1,464.52x = 2,019.90 × 874.93
  4. Step 4: Simplify right side
    1,464.52x = 1,767,271.11
  5. Step 5: Solve for x
    x = 1,767,271.11/1,464.52
  6. Step 6: Final answer
    x = 1,206.72

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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.