Home / 1,405.08-2,108.56-583.34

Finding the Fourth Proportional to 1,405.08, 2,108.56 and 583.34

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Solution

The fourth proportional to 1,405.08, 2,108.56 and 583.34 is: 875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.08 : 2,108.56 = 583.34 : x
  2. Step 2: Convert to fraction form
    1,405.08/2,108.56 = 583.34/x
  3. Step 3: Cross multiply
    1,405.08x = 2,108.56 × 583.34
  4. Step 4: Simplify right side
    1,405.08x = 1,230,007.39
  5. Step 5: Solve for x
    x = 1,230,007.39/1,405.08
  6. Step 6: Final answer
    x = 875.40

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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.