Home / 1,743.36-2,613.84-647.15

Finding the Fourth Proportional to 1,743.36, 2,613.84 and 647.15

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Solution

The fourth proportional to 1,743.36, 2,613.84 and 647.15 is: 970.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.36 : 2,613.84 = 647.15 : x
  2. Step 2: Convert to fraction form
    1,743.36/2,613.84 = 647.15/x
  3. Step 3: Cross multiply
    1,743.36x = 2,613.84 × 647.15
  4. Step 4: Simplify right side
    1,743.36x = 1,691,533.49
  5. Step 5: Solve for x
    x = 1,691,533.49/1,743.36
  6. Step 6: Final answer
    x = 970.27

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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.