Home / 1,570.78-2,166.22-1,010.26

Finding the Fourth Proportional to 1,570.78, 2,166.22 and 1,010.26

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Solution

The fourth proportional to 1,570.78, 2,166.22 and 1,010.26 is: 1,393.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570.78 : 2,166.22 = 1,010.26 : x
  2. Step 2: Convert to fraction form
    1,570.78/2,166.22 = 1,010.26/x
  3. Step 3: Cross multiply
    1,570.78x = 2,166.22 × 1,010.26
  4. Step 4: Simplify right side
    1,570.78x = 2,188,445.42
  5. Step 5: Solve for x
    x = 2,188,445.42/1,570.78
  6. Step 6: Final answer
    x = 1,393.22

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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.