Home / 2,477.60-3,417.36-2,166.56

Finding the Fourth Proportional to 2,477.60, 3,417.36 and 2,166.56

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Solution

The fourth proportional to 2,477.60, 3,417.36 and 2,166.56 is: 2,988.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.60 : 3,417.36 = 2,166.56 : x
  2. Step 2: Convert to fraction form
    2,477.60/3,417.36 = 2,166.56/x
  3. Step 3: Cross multiply
    2,477.60x = 3,417.36 × 2,166.56
  4. Step 4: Simplify right side
    2,477.60x = 7,403,915.48
  5. Step 5: Solve for x
    x = 7,403,915.48/2,477.60
  6. Step 6: Final answer
    x = 2,988.34

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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.