Home / 1,570.66-2,167.80-1,011.04

Finding the Fourth Proportional to 1,570.66, 2,167.80 and 1,011.04

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Solution

The fourth proportional to 1,570.66, 2,167.80 and 1,011.04 is: 1,395.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570.66 : 2,167.80 = 1,011.04 : x
  2. Step 2: Convert to fraction form
    1,570.66/2,167.80 = 1,011.04/x
  3. Step 3: Cross multiply
    1,570.66x = 2,167.80 × 1,011.04
  4. Step 4: Simplify right side
    1,570.66x = 2,191,732.51
  5. Step 5: Solve for x
    x = 2,191,732.51/1,570.66
  6. Step 6: Final answer
    x = 1,395.42

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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.