Home / 1,417.47-2,123.46-1,125.51

Finding the Fourth Proportional to 1,417.47, 2,123.46 and 1,125.51

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Solution

The fourth proportional to 1,417.47, 2,123.46 and 1,125.51 is: 1,686.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.47 : 2,123.46 = 1,125.51 : x
  2. Step 2: Convert to fraction form
    1,417.47/2,123.46 = 1,125.51/x
  3. Step 3: Cross multiply
    1,417.47x = 2,123.46 × 1,125.51
  4. Step 4: Simplify right side
    1,417.47x = 2,389,975.46
  5. Step 5: Solve for x
    x = 2,389,975.46/1,417.47
  6. Step 6: Final answer
    x = 1,686.09

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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.