Home / 1,621.63-2,237.14-1,031.85

Finding the Fourth Proportional to 1,621.63, 2,237.14 and 1,031.85

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Solution

The fourth proportional to 1,621.63, 2,237.14 and 1,031.85 is: 1,423.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.63 : 2,237.14 = 1,031.85 : x
  2. Step 2: Convert to fraction form
    1,621.63/2,237.14 = 1,031.85/x
  3. Step 3: Cross multiply
    1,621.63x = 2,237.14 × 1,031.85
  4. Step 4: Simplify right side
    1,621.63x = 2,308,392.91
  5. Step 5: Solve for x
    x = 2,308,392.91/1,621.63
  6. Step 6: Final answer
    x = 1,423.50

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1.5x scale

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.