Home / 1,556.40-2,334.69-631.94

Finding the Fourth Proportional to 1,556.40, 2,334.69 and 631.94

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Solution

The fourth proportional to 1,556.40, 2,334.69 and 631.94 is: 947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.40 : 2,334.69 = 631.94 : x
  2. Step 2: Convert to fraction form
    1,556.40/2,334.69 = 631.94/x
  3. Step 3: Cross multiply
    1,556.40x = 2,334.69 × 631.94
  4. Step 4: Simplify right side
    1,556.40x = 1,475,384.00
  5. Step 5: Solve for x
    x = 1,475,384.00/1,556.40
  6. Step 6: Final answer
    x = 947.95

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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.