Home / 1,547.76-2,319.70-669.23

Finding the Fourth Proportional to 1,547.76, 2,319.70 and 669.23

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Solution

The fourth proportional to 1,547.76, 2,319.70 and 669.23 is: 1,003.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.76 : 2,319.70 = 669.23 : x
  2. Step 2: Convert to fraction form
    1,547.76/2,319.70 = 669.23/x
  3. Step 3: Cross multiply
    1,547.76x = 2,319.70 × 669.23
  4. Step 4: Simplify right side
    1,547.76x = 1,552,412.83
  5. Step 5: Solve for x
    x = 1,552,412.83/1,547.76
  6. Step 6: Final answer
    x = 1,003.01

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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.