Home / 1,515.90-2,092.93-1,358.26

Finding the Fourth Proportional to 1,515.90, 2,092.93 and 1,358.26

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Solution

The fourth proportional to 1,515.90, 2,092.93 and 1,358.26 is: 1,875.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.90 : 2,092.93 = 1,358.26 : x
  2. Step 2: Convert to fraction form
    1,515.90/2,092.93 = 1,358.26/x
  3. Step 3: Cross multiply
    1,515.90x = 2,092.93 × 1,358.26
  4. Step 4: Simplify right side
    1,515.90x = 2,842,734.47
  5. Step 5: Solve for x
    x = 2,842,734.47/1,515.90
  6. Step 6: Final answer
    x = 1,875.28

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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.