Home / 4,720.24-7,080.16-1,946.16

Finding the Fourth Proportional to 4,720.24, 7,080.16 and 1,946.16

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Solution

The fourth proportional to 4,720.24, 7,080.16 and 1,946.16 is: 2,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.24 : 7,080.16 = 1,946.16 : x
  2. Step 2: Convert to fraction form
    4,720.24/7,080.16 = 1,946.16/x
  3. Step 3: Cross multiply
    4,720.24x = 7,080.16 × 1,946.16
  4. Step 4: Simplify right side
    4,720.24x = 13,779,124.19
  5. Step 5: Solve for x
    x = 13,779,124.19/4,720.24
  6. Step 6: Final answer
    x = 2,919.16

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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.