Home / 5,783.02-7,980.55-3,130.41

Finding the Fourth Proportional to 5,783.02, 7,980.55 and 3,130.41

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Solution

The fourth proportional to 5,783.02, 7,980.55 and 3,130.41 is: 4,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,783.02 : 7,980.55 = 3,130.41 : x
  2. Step 2: Convert to fraction form
    5,783.02/7,980.55 = 3,130.41/x
  3. Step 3: Cross multiply
    5,783.02x = 7,980.55 × 3,130.41
  4. Step 4: Simplify right side
    5,783.02x = 24,982,393.53
  5. Step 5: Solve for x
    x = 24,982,393.53/5,783.02
  6. Step 6: Final answer
    x = 4,319.96

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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.