Home / 1,352.38-2,017.51-1,290.46

Finding the Fourth Proportional to 1,352.38, 2,017.51 and 1,290.46

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Solution

The fourth proportional to 1,352.38, 2,017.51 and 1,290.46 is: 1,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.38 : 2,017.51 = 1,290.46 : x
  2. Step 2: Convert to fraction form
    1,352.38/2,017.51 = 1,290.46/x
  3. Step 3: Cross multiply
    1,352.38x = 2,017.51 × 1,290.46
  4. Step 4: Simplify right side
    1,352.38x = 2,603,515.95
  5. Step 5: Solve for x
    x = 2,603,515.95/1,352.38
  6. Step 6: Final answer
    x = 1,925.14

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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.