Home / 2,590.21-3,574.45-1,411.28

Finding the Fourth Proportional to 2,590.21, 3,574.45 and 1,411.28

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Solution

The fourth proportional to 2,590.21, 3,574.45 and 1,411.28 is: 1,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.21 : 3,574.45 = 1,411.28 : x
  2. Step 2: Convert to fraction form
    2,590.21/3,574.45 = 1,411.28/x
  3. Step 3: Cross multiply
    2,590.21x = 3,574.45 × 1,411.28
  4. Step 4: Simplify right side
    2,590.21x = 5,044,549.80
  5. Step 5: Solve for x
    x = 5,044,549.80/2,590.21
  6. Step 6: Final answer
    x = 1,947.55

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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.