Home / 1,590.02-2,193.70-1,031.22

Finding the Fourth Proportional to 1,590.02, 2,193.70 and 1,031.22

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Solution

The fourth proportional to 1,590.02, 2,193.70 and 1,031.22 is: 1,422.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.02 : 2,193.70 = 1,031.22 : x
  2. Step 2: Convert to fraction form
    1,590.02/2,193.70 = 1,031.22/x
  3. Step 3: Cross multiply
    1,590.02x = 2,193.70 × 1,031.22
  4. Step 4: Simplify right side
    1,590.02x = 2,262,187.31
  5. Step 5: Solve for x
    x = 2,262,187.31/1,590.02
  6. Step 6: Final answer
    x = 1,422.74

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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.