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Finding the Fourth Proportional to 7,580, 10,458.80 and 4,435.52

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Solution

The fourth proportional to 7,580, 10,458.80 and 4,435.52 is: 6,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,580 : 10,458.80 = 4,435.52 : x
  2. Step 2: Convert to fraction form
    7,580/10,458.80 = 4,435.52/x
  3. Step 3: Cross multiply
    7,580x = 10,458.80 × 4,435.52
  4. Step 4: Simplify right side
    7,580x = 46,390,216.58
  5. Step 5: Solve for x
    x = 46,390,216.58/7,580
  6. Step 6: Final answer
    x = 6,120.08

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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.