Home / 1,725.10-2,380.40-1,017.12

Finding the Fourth Proportional to 1,725.10, 2,380.40 and 1,017.12

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Solution

The fourth proportional to 1,725.10, 2,380.40 and 1,017.12 is: 1,403.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.10 : 2,380.40 = 1,017.12 : x
  2. Step 2: Convert to fraction form
    1,725.10/2,380.40 = 1,017.12/x
  3. Step 3: Cross multiply
    1,725.10x = 2,380.40 × 1,017.12
  4. Step 4: Simplify right side
    1,725.10x = 2,421,152.45
  5. Step 5: Solve for x
    x = 2,421,152.45/1,725.10
  6. Step 6: Final answer
    x = 1,403.49

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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.