Home / 2,455.80-3,388.28-1,570.07

Finding the Fourth Proportional to 2,455.80, 3,388.28 and 1,570.07

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Solution

The fourth proportional to 2,455.80, 3,388.28 and 1,570.07 is: 2,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.80 : 3,388.28 = 1,570.07 : x
  2. Step 2: Convert to fraction form
    2,455.80/3,388.28 = 1,570.07/x
  3. Step 3: Cross multiply
    2,455.80x = 3,388.28 × 1,570.07
  4. Step 4: Simplify right side
    2,455.80x = 5,319,811.99
  5. Step 5: Solve for x
    x = 5,319,811.99/2,455.80
  6. Step 6: Final answer
    x = 2,166.22

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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.