Home / 1,590.65-2,195.21-882.57

Finding the Fourth Proportional to 1,590.65, 2,195.21 and 882.57

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Solution

The fourth proportional to 1,590.65, 2,195.21 and 882.57 is: 1,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.65 : 2,195.21 = 882.57 : x
  2. Step 2: Convert to fraction form
    1,590.65/2,195.21 = 882.57/x
  3. Step 3: Cross multiply
    1,590.65x = 2,195.21 × 882.57
  4. Step 4: Simplify right side
    1,590.65x = 1,937,420.46
  5. Step 5: Solve for x
    x = 1,937,420.46/1,590.65
  6. Step 6: Final answer
    x = 1,218.00

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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.