Home / 1,506.81-2,076.77-1,226.45

Finding the Fourth Proportional to 1,506.81, 2,076.77 and 1,226.45

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Solution

The fourth proportional to 1,506.81, 2,076.77 and 1,226.45 is: 1,690.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.81 : 2,076.77 = 1,226.45 : x
  2. Step 2: Convert to fraction form
    1,506.81/2,076.77 = 1,226.45/x
  3. Step 3: Cross multiply
    1,506.81x = 2,076.77 × 1,226.45
  4. Step 4: Simplify right side
    1,506.81x = 2,547,062.82
  5. Step 5: Solve for x
    x = 2,547,062.82/1,506.81
  6. Step 6: Final answer
    x = 1,690.36

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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.