Home / 1,579.71-2,178.73-1,515.93

Finding the Fourth Proportional to 1,579.71, 2,178.73 and 1,515.93

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Solution

The fourth proportional to 1,579.71, 2,178.73 and 1,515.93 is: 2,090.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.71 : 2,178.73 = 1,515.93 : x
  2. Step 2: Convert to fraction form
    1,579.71/2,178.73 = 1,515.93/x
  3. Step 3: Cross multiply
    1,579.71x = 2,178.73 × 1,515.93
  4. Step 4: Simplify right side
    1,579.71x = 3,302,802.17
  5. Step 5: Solve for x
    x = 3,302,802.17/1,579.71
  6. Step 6: Final answer
    x = 2,090.76

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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.