Home / 1,707.68-2,353.19-1,117.19

Finding the Fourth Proportional to 1,707.68, 2,353.19 and 1,117.19

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Solution

The fourth proportional to 1,707.68, 2,353.19 and 1,117.19 is: 1,539.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.68 : 2,353.19 = 1,117.19 : x
  2. Step 2: Convert to fraction form
    1,707.68/2,353.19 = 1,117.19/x
  3. Step 3: Cross multiply
    1,707.68x = 2,353.19 × 1,117.19
  4. Step 4: Simplify right side
    1,707.68x = 2,628,960.63
  5. Step 5: Solve for x
    x = 2,628,960.63/1,707.68
  6. Step 6: Final answer
    x = 1,539.49

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Half scale
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Double scale
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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.