Home / 1,004.06-1,385.58-561.98

Finding the Fourth Proportional to 1,004.06, 1,385.58 and 561.98

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Solution

The fourth proportional to 1,004.06, 1,385.58 and 561.98 is: 775.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.06 : 1,385.58 = 561.98 : x
  2. Step 2: Convert to fraction form
    1,004.06/1,385.58 = 561.98/x
  3. Step 3: Cross multiply
    1,004.06x = 1,385.58 × 561.98
  4. Step 4: Simplify right side
    1,004.06x = 778,668.25
  5. Step 5: Solve for x
    x = 778,668.25/1,004.06
  6. Step 6: Final answer
    x = 775.52

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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.