Home / 2,970.39-4,457.55-1,584.72

Finding the Fourth Proportional to 2,970.39, 4,457.55 and 1,584.72

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Solution

The fourth proportional to 2,970.39, 4,457.55 and 1,584.72 is: 2,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.39 : 4,457.55 = 1,584.72 : x
  2. Step 2: Convert to fraction form
    2,970.39/4,457.55 = 1,584.72/x
  3. Step 3: Cross multiply
    2,970.39x = 4,457.55 × 1,584.72
  4. Step 4: Simplify right side
    2,970.39x = 7,063,968.64
  5. Step 5: Solve for x
    x = 7,063,968.64/2,970.39
  6. Step 6: Final answer
    x = 2,378.13

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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.