Home / 1,405.07-2,108.15-583.13

Finding the Fourth Proportional to 1,405.07, 2,108.15 and 583.13

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Solution

The fourth proportional to 1,405.07, 2,108.15 and 583.13 is: 874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.07 : 2,108.15 = 583.13 : x
  2. Step 2: Convert to fraction form
    1,405.07/2,108.15 = 583.13/x
  3. Step 3: Cross multiply
    1,405.07x = 2,108.15 × 583.13
  4. Step 4: Simplify right side
    1,405.07x = 1,229,312.05
  5. Step 5: Solve for x
    x = 1,229,312.05/1,405.07
  6. Step 6: Final answer
    x = 874.91

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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.