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Finding the Fourth Proportional to 1,235.04, 1,854.72 and 975.30

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Solution

The fourth proportional to 1,235.04, 1,854.72 and 975.30 is: 1,464.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235.04 : 1,854.72 = 975.30 : x
  2. Step 2: Convert to fraction form
    1,235.04/1,854.72 = 975.30/x
  3. Step 3: Cross multiply
    1,235.04x = 1,854.72 × 975.30
  4. Step 4: Simplify right side
    1,235.04x = 1,808,908.42
  5. Step 5: Solve for x
    x = 1,808,908.42/1,235.04
  6. Step 6: Final answer
    x = 1,464.66

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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.