Home / 1,584.02-2,186.63-1,089.21

Finding the Fourth Proportional to 1,584.02, 2,186.63 and 1,089.21

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Solution

The fourth proportional to 1,584.02, 2,186.63 and 1,089.21 is: 1,503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.02 : 2,186.63 = 1,089.21 : x
  2. Step 2: Convert to fraction form
    1,584.02/2,186.63 = 1,089.21/x
  3. Step 3: Cross multiply
    1,584.02x = 2,186.63 × 1,089.21
  4. Step 4: Simplify right side
    1,584.02x = 2,381,699.26
  5. Step 5: Solve for x
    x = 2,381,699.26/1,584.02
  6. Step 6: Final answer
    x = 1,503.58

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1.5x scale

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.