Home / 1,720.08-2,567.52-1,478.16

Finding the Fourth Proportional to 1,720.08, 2,567.52 and 1,478.16

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Solution

The fourth proportional to 1,720.08, 2,567.52 and 1,478.16 is: 2,206.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.08 : 2,567.52 = 1,478.16 : x
  2. Step 2: Convert to fraction form
    1,720.08/2,567.52 = 1,478.16/x
  3. Step 3: Cross multiply
    1,720.08x = 2,567.52 × 1,478.16
  4. Step 4: Simplify right side
    1,720.08x = 3,795,205.36
  5. Step 5: Solve for x
    x = 3,795,205.36/1,720.08
  6. Step 6: Final answer
    x = 2,206.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.