Home / 1,704.40-2,345.43-1,508.38

Finding the Fourth Proportional to 1,704.40, 2,345.43 and 1,508.38

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Solution

The fourth proportional to 1,704.40, 2,345.43 and 1,508.38 is: 2,075.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.40 : 2,345.43 = 1,508.38 : x
  2. Step 2: Convert to fraction form
    1,704.40/2,345.43 = 1,508.38/x
  3. Step 3: Cross multiply
    1,704.40x = 2,345.43 × 1,508.38
  4. Step 4: Simplify right side
    1,704.40x = 3,537,799.70
  5. Step 5: Solve for x
    x = 3,537,799.70/1,704.40
  6. Step 6: Final answer
    x = 2,075.69

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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.