Home / 1,547.02-2,135.18-1,210.25

Finding the Fourth Proportional to 1,547.02, 2,135.18 and 1,210.25

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Solution

The fourth proportional to 1,547.02, 2,135.18 and 1,210.25 is: 1,670.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.02 : 2,135.18 = 1,210.25 : x
  2. Step 2: Convert to fraction form
    1,547.02/2,135.18 = 1,210.25/x
  3. Step 3: Cross multiply
    1,547.02x = 2,135.18 × 1,210.25
  4. Step 4: Simplify right side
    1,547.02x = 2,584,105.96
  5. Step 5: Solve for x
    x = 2,584,105.96/1,547.02
  6. Step 6: Final answer
    x = 1,670.38

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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.