Home / 7,828.48-10,803.28-4,291.68

Finding the Fourth Proportional to 7,828.48, 10,803.28 and 4,291.68

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Solution

The fourth proportional to 7,828.48, 10,803.28 and 4,291.68 is: 5,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.48 : 10,803.28 = 4,291.68 : x
  2. Step 2: Convert to fraction form
    7,828.48/10,803.28 = 4,291.68/x
  3. Step 3: Cross multiply
    7,828.48x = 10,803.28 × 4,291.68
  4. Step 4: Simplify right side
    7,828.48x = 46,364,220.71
  5. Step 5: Solve for x
    x = 46,364,220.71/7,828.48
  6. Step 6: Final answer
    x = 5,922.51

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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.