Home / 1,603.04-2,211.23-1,247.65

Finding the Fourth Proportional to 1,603.04, 2,211.23 and 1,247.65

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Solution

The fourth proportional to 1,603.04, 2,211.23 and 1,247.65 is: 1,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.04 : 2,211.23 = 1,247.65 : x
  2. Step 2: Convert to fraction form
    1,603.04/2,211.23 = 1,247.65/x
  3. Step 3: Cross multiply
    1,603.04x = 2,211.23 × 1,247.65
  4. Step 4: Simplify right side
    1,603.04x = 2,758,830.05
  5. Step 5: Solve for x
    x = 2,758,830.05/1,603.04
  6. Step 6: Final answer
    x = 1,721.00

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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.