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Finding the Fourth Proportional to 2,731.07, 4,095.19 and 975.40

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Solution

The fourth proportional to 2,731.07, 4,095.19 and 975.40 is: 1,462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.07 : 4,095.19 = 975.40 : x
  2. Step 2: Convert to fraction form
    2,731.07/4,095.19 = 975.40/x
  3. Step 3: Cross multiply
    2,731.07x = 4,095.19 × 975.40
  4. Step 4: Simplify right side
    2,731.07x = 3,994,439.31
  5. Step 5: Solve for x
    x = 3,994,439.31/2,731.07
  6. Step 6: Final answer
    x = 1,462.59

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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.