Home / 1,569.42-2,165.04-1,038.51

Finding the Fourth Proportional to 1,569.42, 2,165.04 and 1,038.51

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Solution

The fourth proportional to 1,569.42, 2,165.04 and 1,038.51 is: 1,432.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.42 : 2,165.04 = 1,038.51 : x
  2. Step 2: Convert to fraction form
    1,569.42/2,165.04 = 1,038.51/x
  3. Step 3: Cross multiply
    1,569.42x = 2,165.04 × 1,038.51
  4. Step 4: Simplify right side
    1,569.42x = 2,248,415.69
  5. Step 5: Solve for x
    x = 2,248,415.69/1,569.42
  6. Step 6: Final answer
    x = 1,432.64

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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.