Home / 2,124.79-3,188.09-1,070.06

Finding the Fourth Proportional to 2,124.79, 3,188.09 and 1,070.06

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Solution

The fourth proportional to 2,124.79, 3,188.09 and 1,070.06 is: 1,605.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.79 : 3,188.09 = 1,070.06 : x
  2. Step 2: Convert to fraction form
    2,124.79/3,188.09 = 1,070.06/x
  3. Step 3: Cross multiply
    2,124.79x = 3,188.09 × 1,070.06
  4. Step 4: Simplify right side
    2,124.79x = 3,411,426.29
  5. Step 5: Solve for x
    x = 3,411,426.29/2,124.79
  6. Step 6: Final answer
    x = 1,605.54

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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.