Home / 1,584.08-2,186.04-921.35

Finding the Fourth Proportional to 1,584.08, 2,186.04 and 921.35

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Solution

The fourth proportional to 1,584.08, 2,186.04 and 921.35 is: 1,271.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.08 : 2,186.04 = 921.35 : x
  2. Step 2: Convert to fraction form
    1,584.08/2,186.04 = 921.35/x
  3. Step 3: Cross multiply
    1,584.08x = 2,186.04 × 921.35
  4. Step 4: Simplify right side
    1,584.08x = 2,014,107.95
  5. Step 5: Solve for x
    x = 2,014,107.95/1,584.08
  6. Step 6: Final answer
    x = 1,271.47

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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.