Home / 1,405.09-2,107.80-583.93

Finding the Fourth Proportional to 1,405.09, 2,107.80 and 583.93

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Solution

The fourth proportional to 1,405.09, 2,107.80 and 583.93 is: 875.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.09 : 2,107.80 = 583.93 : x
  2. Step 2: Convert to fraction form
    1,405.09/2,107.80 = 583.93/x
  3. Step 3: Cross multiply
    1,405.09x = 2,107.80 × 583.93
  4. Step 4: Simplify right side
    1,405.09x = 1,230,807.65
  5. Step 5: Solve for x
    x = 1,230,807.65/1,405.09
  6. Step 6: Final answer
    x = 875.96

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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.