Home / 5,130.64-7,077-3,558.16

Finding the Fourth Proportional to 5,130.64, 7,077 and 3,558.16

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Solution

The fourth proportional to 5,130.64, 7,077 and 3,558.16 is: 4,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.64 : 7,077 = 3,558.16 : x
  2. Step 2: Convert to fraction form
    5,130.64/7,077 = 3,558.16/x
  3. Step 3: Cross multiply
    5,130.64x = 7,077 × 3,558.16
  4. Step 4: Simplify right side
    5,130.64x = 25,181,098.32
  5. Step 5: Solve for x
    x = 25,181,098.32/5,130.64
  6. Step 6: Final answer
    x = 4,907.98

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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.