Home / 7,445.84-10,275.23-4,215.60

Finding the Fourth Proportional to 7,445.84, 10,275.23 and 4,215.60

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Solution

The fourth proportional to 7,445.84, 10,275.23 and 4,215.60 is: 5,817.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.84 : 10,275.23 = 4,215.60 : x
  2. Step 2: Convert to fraction form
    7,445.84/10,275.23 = 4,215.60/x
  3. Step 3: Cross multiply
    7,445.84x = 10,275.23 × 4,215.60
  4. Step 4: Simplify right side
    7,445.84x = 43,316,270.13
  5. Step 5: Solve for x
    x = 43,316,270.13/7,445.84
  6. Step 6: Final answer
    x = 5,817.52

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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.