Home / 1,536.52-2,120.10-947.41

Finding the Fourth Proportional to 1,536.52, 2,120.10 and 947.41

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Solution

The fourth proportional to 1,536.52, 2,120.10 and 947.41 is: 1,307.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.52 : 2,120.10 = 947.41 : x
  2. Step 2: Convert to fraction form
    1,536.52/2,120.10 = 947.41/x
  3. Step 3: Cross multiply
    1,536.52x = 2,120.10 × 947.41
  4. Step 4: Simplify right side
    1,536.52x = 2,008,603.94
  5. Step 5: Solve for x
    x = 2,008,603.94/1,536.52
  6. Step 6: Final answer
    x = 1,307.24

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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.