Home / 1,559.78-2,339.66-1,071.34

Finding the Fourth Proportional to 1,559.78, 2,339.66 and 1,071.34

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Solution

The fourth proportional to 1,559.78, 2,339.66 and 1,071.34 is: 1,607.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.78 : 2,339.66 = 1,071.34 : x
  2. Step 2: Convert to fraction form
    1,559.78/2,339.66 = 1,071.34/x
  3. Step 3: Cross multiply
    1,559.78x = 2,339.66 × 1,071.34
  4. Step 4: Simplify right side
    1,559.78x = 2,506,571.34
  5. Step 5: Solve for x
    x = 2,506,571.34/1,559.78
  6. Step 6: Final answer
    x = 1,607.00

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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.