Home / 5,210.04-7,815-1,314.44

Finding the Fourth Proportional to 5,210.04, 7,815 and 1,314.44

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Solution

The fourth proportional to 5,210.04, 7,815 and 1,314.44 is: 1,971.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.04 : 7,815 = 1,314.44 : x
  2. Step 2: Convert to fraction form
    5,210.04/7,815 = 1,314.44/x
  3. Step 3: Cross multiply
    5,210.04x = 7,815 × 1,314.44
  4. Step 4: Simplify right side
    5,210.04x = 10,272,348.60
  5. Step 5: Solve for x
    x = 10,272,348.60/5,210.04
  6. Step 6: Final answer
    x = 1,971.64

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1.5x scale

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.