Home / 2,477.79-3,418.07-1,681.16

Finding the Fourth Proportional to 2,477.79, 3,418.07 and 1,681.16

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Solution

The fourth proportional to 2,477.79, 3,418.07 and 1,681.16 is: 2,319.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.79 : 3,418.07 = 1,681.16 : x
  2. Step 2: Convert to fraction form
    2,477.79/3,418.07 = 1,681.16/x
  3. Step 3: Cross multiply
    2,477.79x = 3,418.07 × 1,681.16
  4. Step 4: Simplify right side
    2,477.79x = 5,746,297.07
  5. Step 5: Solve for x
    x = 5,746,297.07/2,477.79
  6. Step 6: Final answer
    x = 2,319.12

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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.