Home / 1,719.33-2,372.60-1,011.20

Finding the Fourth Proportional to 1,719.33, 2,372.60 and 1,011.20

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Solution

The fourth proportional to 1,719.33, 2,372.60 and 1,011.20 is: 1,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.33 : 2,372.60 = 1,011.20 : x
  2. Step 2: Convert to fraction form
    1,719.33/2,372.60 = 1,011.20/x
  3. Step 3: Cross multiply
    1,719.33x = 2,372.60 × 1,011.20
  4. Step 4: Simplify right side
    1,719.33x = 2,399,156.20
  5. Step 5: Solve for x
    x = 2,399,156.20/1,719.33
  6. Step 6: Final answer
    x = 1,395.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.