Home / 2,570.99-3,547.97-1,392.06

Finding the Fourth Proportional to 2,570.99, 3,547.97 and 1,392.06

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Solution

The fourth proportional to 2,570.99, 3,547.97 and 1,392.06 is: 1,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.99 : 3,547.97 = 1,392.06 : x
  2. Step 2: Convert to fraction form
    2,570.99/3,547.97 = 1,392.06/x
  3. Step 3: Cross multiply
    2,570.99x = 3,547.97 × 1,392.06
  4. Step 4: Simplify right side
    2,570.99x = 4,938,980.16
  5. Step 5: Solve for x
    x = 4,938,980.16/2,570.99
  6. Step 6: Final answer
    x = 1,921.04

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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.