Home / 1,547.45-2,123.63-1,536.51

Finding the Fourth Proportional to 1,547.45, 2,123.63 and 1,536.51

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Solution

The fourth proportional to 1,547.45, 2,123.63 and 1,536.51 is: 2,108.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.45 : 2,123.63 = 1,536.51 : x
  2. Step 2: Convert to fraction form
    1,547.45/2,123.63 = 1,536.51/x
  3. Step 3: Cross multiply
    1,547.45x = 2,123.63 × 1,536.51
  4. Step 4: Simplify right side
    1,547.45x = 3,262,982.57
  5. Step 5: Solve for x
    x = 3,262,982.57/1,547.45
  6. Step 6: Final answer
    x = 2,108.63

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.