Home / 2,519.10-3,780.18-1,058.40

Finding the Fourth Proportional to 2,519.10, 3,780.18 and 1,058.40

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Solution

The fourth proportional to 2,519.10, 3,780.18 and 1,058.40 is: 1,588.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.10 : 3,780.18 = 1,058.40 : x
  2. Step 2: Convert to fraction form
    2,519.10/3,780.18 = 1,058.40/x
  3. Step 3: Cross multiply
    2,519.10x = 3,780.18 × 1,058.40
  4. Step 4: Simplify right side
    2,519.10x = 4,000,942.51
  5. Step 5: Solve for x
    x = 4,000,942.51/2,519.10
  6. Step 6: Final answer
    x = 1,588.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.