Home / 7,762.16-11,643.28-2,215.60

Finding the Fourth Proportional to 7,762.16, 11,643.28 and 2,215.60

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Solution

The fourth proportional to 7,762.16, 11,643.28 and 2,215.60 is: 3,323.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,762.16 : 11,643.28 = 2,215.60 : x
  2. Step 2: Convert to fraction form
    7,762.16/11,643.28 = 2,215.60/x
  3. Step 3: Cross multiply
    7,762.16x = 11,643.28 × 2,215.60
  4. Step 4: Simplify right side
    7,762.16x = 25,796,851.17
  5. Step 5: Solve for x
    x = 25,796,851.17/7,762.16
  6. Step 6: Final answer
    x = 3,323.41

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1.5x scale

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.