Home / 2,971.55-4,458.92-1,931.31

Finding the Fourth Proportional to 2,971.55, 4,458.92 and 1,931.31

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Solution

The fourth proportional to 2,971.55, 4,458.92 and 1,931.31 is: 2,898.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.55 : 4,458.92 = 1,931.31 : x
  2. Step 2: Convert to fraction form
    2,971.55/4,458.92 = 1,931.31/x
  3. Step 3: Cross multiply
    2,971.55x = 4,458.92 × 1,931.31
  4. Step 4: Simplify right side
    2,971.55x = 8,611,547.13
  5. Step 5: Solve for x
    x = 8,611,547.13/2,971.55
  6. Step 6: Final answer
    x = 2,898.00

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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.