Home / 1,718.79-2,576.30-1,125.09

Finding the Fourth Proportional to 1,718.79, 2,576.30 and 1,125.09

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Solution

The fourth proportional to 1,718.79, 2,576.30 and 1,125.09 is: 1,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.79 : 2,576.30 = 1,125.09 : x
  2. Step 2: Convert to fraction form
    1,718.79/2,576.30 = 1,125.09/x
  3. Step 3: Cross multiply
    1,718.79x = 2,576.30 × 1,125.09
  4. Step 4: Simplify right side
    1,718.79x = 2,898,563.74
  5. Step 5: Solve for x
    x = 2,898,563.74/1,718.79
  6. Step 6: Final answer
    x = 1,686.40

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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.