Home / 1,554.55-2,148.02-1,225.60

Finding the Fourth Proportional to 1,554.55, 2,148.02 and 1,225.60

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Solution

The fourth proportional to 1,554.55, 2,148.02 and 1,225.60 is: 1,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.55 : 2,148.02 = 1,225.60 : x
  2. Step 2: Convert to fraction form
    1,554.55/2,148.02 = 1,225.60/x
  3. Step 3: Cross multiply
    1,554.55x = 2,148.02 × 1,225.60
  4. Step 4: Simplify right side
    1,554.55x = 2,632,613.31
  5. Step 5: Solve for x
    x = 2,632,613.31/1,554.55
  6. Step 6: Final answer
    x = 1,693.49

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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.