Home / 1,355.27-2,017.53-1,347.08

Finding the Fourth Proportional to 1,355.27, 2,017.53 and 1,347.08

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Solution

The fourth proportional to 1,355.27, 2,017.53 and 1,347.08 is: 2,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.27 : 2,017.53 = 1,347.08 : x
  2. Step 2: Convert to fraction form
    1,355.27/2,017.53 = 1,347.08/x
  3. Step 3: Cross multiply
    1,355.27x = 2,017.53 × 1,347.08
  4. Step 4: Simplify right side
    1,355.27x = 2,717,764.22
  5. Step 5: Solve for x
    x = 2,717,764.22/1,355.27
  6. Step 6: Final answer
    x = 2,005.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.