Home / 1,710.19-2,358.72-1,238.16

Finding the Fourth Proportional to 1,710.19, 2,358.72 and 1,238.16

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Solution

The fourth proportional to 1,710.19, 2,358.72 and 1,238.16 is: 1,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.19 : 2,358.72 = 1,238.16 : x
  2. Step 2: Convert to fraction form
    1,710.19/2,358.72 = 1,238.16/x
  3. Step 3: Cross multiply
    1,710.19x = 2,358.72 × 1,238.16
  4. Step 4: Simplify right side
    1,710.19x = 2,920,460.96
  5. Step 5: Solve for x
    x = 2,920,460.96/1,710.19
  6. Step 6: Final answer
    x = 1,707.68

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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.