Home / 1,845.48-2,547.26-1,247.70

Finding the Fourth Proportional to 1,845.48, 2,547.26 and 1,247.70

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Solution

The fourth proportional to 1,845.48, 2,547.26 and 1,247.70 is: 1,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.48 : 2,547.26 = 1,247.70 : x
  2. Step 2: Convert to fraction form
    1,845.48/2,547.26 = 1,247.70/x
  3. Step 3: Cross multiply
    1,845.48x = 2,547.26 × 1,247.70
  4. Step 4: Simplify right side
    1,845.48x = 3,178,210.06
  5. Step 5: Solve for x
    x = 3,178,210.06/1,845.48
  6. Step 6: Final answer
    x = 1,722.16

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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.