Home / 1,357.48-1,873.52-1,274.08

Finding the Fourth Proportional to 1,357.48, 1,873.52 and 1,274.08

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Solution

The fourth proportional to 1,357.48, 1,873.52 and 1,274.08 is: 1,758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.48 : 1,873.52 = 1,274.08 : x
  2. Step 2: Convert to fraction form
    1,357.48/1,873.52 = 1,274.08/x
  3. Step 3: Cross multiply
    1,357.48x = 1,873.52 × 1,274.08
  4. Step 4: Simplify right side
    1,357.48x = 2,387,014.36
  5. Step 5: Solve for x
    x = 2,387,014.36/1,357.48
  6. Step 6: Final answer
    x = 1,758.42

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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.