Home / 7,106.40-9,809.28-4,275.36

Finding the Fourth Proportional to 7,106.40, 9,809.28 and 4,275.36

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Solution

The fourth proportional to 7,106.40, 9,809.28 and 4,275.36 is: 5,901.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.40 : 9,809.28 = 4,275.36 : x
  2. Step 2: Convert to fraction form
    7,106.40/9,809.28 = 4,275.36/x
  3. Step 3: Cross multiply
    7,106.40x = 9,809.28 × 4,275.36
  4. Step 4: Simplify right side
    7,106.40x = 41,938,203.34
  5. Step 5: Solve for x
    x = 41,938,203.34/7,106.40
  6. Step 6: Final answer
    x = 5,901.47

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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.