Home / 1,558.78-2,338.16-1,070.34

Finding the Fourth Proportional to 1,558.78, 2,338.16 and 1,070.34

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Solution

The fourth proportional to 1,558.78, 2,338.16 and 1,070.34 is: 1,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.78 : 2,338.16 = 1,070.34 : x
  2. Step 2: Convert to fraction form
    1,558.78/2,338.16 = 1,070.34/x
  3. Step 3: Cross multiply
    1,558.78x = 2,338.16 × 1,070.34
  4. Step 4: Simplify right side
    1,558.78x = 2,502,626.17
  5. Step 5: Solve for x
    x = 2,502,626.17/1,558.78
  6. Step 6: Final answer
    x = 1,605.50

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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.