Home / 1,058.19-1,457.15-836.45

Finding the Fourth Proportional to 1,058.19, 1,457.15 and 836.45

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Solution

The fourth proportional to 1,058.19, 1,457.15 and 836.45 is: 1,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.19 : 1,457.15 = 836.45 : x
  2. Step 2: Convert to fraction form
    1,058.19/1,457.15 = 836.45/x
  3. Step 3: Cross multiply
    1,058.19x = 1,457.15 × 836.45
  4. Step 4: Simplify right side
    1,058.19x = 1,218,821.65
  5. Step 5: Solve for x
    x = 1,218,821.65/1,058.19
  6. Step 6: Final answer
    x = 1,151.80

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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.